Sodium chlorate

About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.

Two-stage electrolytic process for preparing high-concentration sodium chlorate soluttions

Abstract: A sodium chlorate solution is obtained by the electrolysis of brine in a diaphragmless cell in a first stage utilizing magnetite or a graphite anode until the residuary NaCl content is not lower than 70g/litre, and in a second stage with a platinized metal or a platinum anode until the NaCl content is between 10% and 3% by weight of the final chlorate content. The initial brine solution preferably has an NaCl content of between 280g/litre and the saturation point and 1 to 10 gms/litre of an alkali metal dichromate or chromate may be added to the initial solution. During the electrolysis a quantity of NaCl representing up to 33% by weight of the initial NaCl content may be added to the solution either in the first or second stages or between the stages. The cathodes of the electrolytic cells are preferably graphite, cast iron, or steel.ALSO:Chlorine dioxide is-produced by reducing with SO2 a solution of sodium chlorate acidified with an inorganic acid, said solution being prepared in a two-stage electrolytic process in which in the first stage a sodium chloride solution is subjected to electrolysis until the sodium chloride content is not substantially less than 70 gm./ litre, and in the second stage electrolysing the electrolyte from the first stage until the sodium chloride content is a predetermined percentage of the sodium chlorate content, and feeding the resulting sodium chlorate and sodium chloride solution to a chlorine dioxide reactor. The first stage is preferably continued until the sodium chloride content is at least equal to 70 gm./litre, and the second stage until the sodium chloride content is 10 to 3% of the sodium chlorate content. The first stage electrolysis is preferably effected using magnetite and graphite anodes, and the second stage using platinized metal or platinum anodes. 1 to 10 gms./litre of an alkali metal dichromate may be added to the initial solution, which solution has an NaCl content of between 280 gm./litre and the saturation point. An addition of NaCl of up to 33% by weight of the initial quantity may be added to the electrolyte in the first or second electrolysing stages or between the stages. The cathodes of the electrolysing cells are preferably graphite, cast iron or steel.

Methanol-based chlorine dioxide process

Abstract: Chlorine dioxide is produced at high efficiency by reduction of sodium chlorate with methanol in an aqueous acid reaction medium at a total acid normality below 7 with the reaction medium being at its boiling point while a subatmospheric pressure is applied thereto and having a chlorate concentration of at least about 20 molar By employing such conditions, the tendency is eliminated for the reaction to be subject to white-outs in the absence of added chloride ion In this way, the chlorine content of product aqueous chlorine dioxide solution arising from this source is eliminated

Effects of repeated-low level sodium chlorate administration on ruminal and fecal coliforms in sheep

Abstract: The objective of this study was to evaluate the efficacy of oral sodium chlorate administration on reducing total coliform populations in ewes. A 30% sodium chlorate product or a sodium chloride placebo was administered to twelve lactating Dorper X Blackbelly or Pelibuey crossbred ewes averaging 65 kg body weight. The ewes were adapted to diet and management. Ewes were randomly assigned (4/treatment) to one of three treatments which were administered twice daily by oral gavage for five consecutive days: a control (TC) consisting of 3 g sodium chloride/animal/d, a T3 treatment consisting of 1.8 g of sodium chlorate/animal/d, and a T9 treatment consisting of 5.4 g sodium chlorate/animal/d; the latter was intended to approximate a lowest known effective dose. Ruminal samples collected by stomach tube and freshly voided fecal samples were collected daily beginning 3 days before treatment initiation and for 6 days thereafter. Contents were cultured quantitatively to enumerate total coliforms. There wer...

An efficient composition for bengal lights

Abstract: Fuel-oxidizer mixtures based on potassium chlorate or sodium chlorate are well known. These mixtures have interesting properties of deflagration and are often used in propellants. Drastic reactivity of alkaline chlorates with ammonium salts due to the formation of ammonium chlorate NH4ClO3, a very unstable salt, is famous. By analogy, we tested the reactivity of different molecules containing nitrogen atoms, and we found an efficient fuel-oxidizer composed of potassium chlorate and thiocarbamide. Impressive bengal lights of various colors can easily be achieved using this basic composition.